Transparent optical component with cells separated by walls
View Patent ↗A transparent optical component comprises a set of cells ( 15 ) juxtaposed on a surface of the component. Each cell encloses a determined substance so as to endow the component with particular optical characteristics, and two neighbouring cells are separated by a wall ( 18 ). Some walls are not straight at the surface of the component, so that the light diffracted by the walls does not form any luminous glint or any flashing. In particular, the walls can be curved or made up of straight segments disposed end-to-end.
1. Transparent optical component comprising at least one set of cells juxtaposed on a surface of the component, each cell containing a substance with optical property and two neighbouring cells being separated by a wall extending perpendicularly to the surface of the component,
wherein the cells are juxtaposed according to a mesh on the surface of the component, each wall separating two neighbouring cells extending between two ends of said wall corresponding to nodes of the mesh, and characterized in that a line defined by the path of the wall along the surface and extending between a pair of adjacent nodes is not straight.
2. Optical component according to claim 1 , in which at least some of the walls have variable respective directions along said walls between the corresponding ends, parallel to the surface of the component.
3. Optical component according to claim 2 , in which the direction of certain walls varies, parallel to the surface of the optical component, by at least 5 degrees along said wall.
4. Optical component according to claim 1 , in which at least some of the walls are curved, over the surface of the optical component.
5. Optical component according to claim 1 , in which all walls are curved, over the surface of the optical component.
6. Optical component according to claim 5 , in which each wall forming a cell represents an arc of circle over 60°, over the whole surface of the optical component.
7. Optical component according to claim 1 , in which at least some of the walls comprise a series of straight wall segments connecting respective ends of said walls.
8. Optical component according to claim 2 , in which the mesh on the surface of the optical component comprises a periodic network of nodes disposed on said surface.
9. Optical component according to claim 8 , in which the mesh on the surface of the optical component comprises, over said surface, a periodic network of so-called “imbrication” comprising nodes located on a regular hexagon, each node being connected by an arc of circle over 60°.
10. Optical component according to claim 8 , in which the mesh on the surface of the optical component comprises, over said surface, a periodic network of so-called “imbrication” comprising nodes located on a regular square, each node being connected by an arc of circle over 90°.
11. Optical component according to claim 2 , in which the mesh on the surface of the optical component is of random or pseudo-random mesh type.
12. Optical component according to claim 1 , in which at least some of the walls have a thickness comprised between 0.10 μm and 5 μm, measured parallel to the surface of the optical component.
13. Optical component according to claim 1 , in which the cells are hermetically sealed.
14. Optical element obtained by cutting out a transparent optical component according to claim 1 .
15. Optical element according to claim 14 , comprising an ophthalmic lens.
16. Optical component according to claim 1 , wherein each wall has a substantially uniform thickness as measured in a direction parallel to the surface of the component.